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protogalaxy
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protogalaxy
ˈprotogalaxy Astr. Also with hyphen. [f. proto- + galaxy n.] A vast mass of gas, not yet formed into stars, postulated as a preliminary stage in the evolution of a galaxy.1959 Astrophysical Jrnl. CXXX. 43 These nuclei had already originated before the protogalaxy condensed into stars. 1969 Monthly N...
Oxford English Dictionary
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ProtoGalaxy
ProtoGalaxy is a 2.5D game; the 2D playing field employs 3D graphics. The developers also intended to expand ProtoGalaxy with new features and levels.
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Protogalaxy
The smaller clumps of gas in a protogalaxy form into stars. Mechanics
Once a protogalaxy begins to form, all particles bound by its gravity begin to free fall towards it.
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proto-
proto- (prəʊtəʊ) before a vowel or h properly prot- (prəʊt), or with h (prəʊθ), repr. Gr. πρωτο-, combining form of πρῶτος first, which became πρωτ- before a simple, and πρωθ- before an aspirated vowel. In compounds already used in Greek, and many of later formation, the Greek practice (represented ...
Oxford English Dictionary
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Himiko (Lyman-alpha blob)
Characteristics
This nebular gas cloud is thought to be a protogalaxy, caught in the act of formation.
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Outline of galaxies
See also
Barred spiral galaxy
Galaxy color–magnitude diagram
Dark galaxy
Faint blue galaxy
Galaxy color–magnitude diagram
Illustris project
Protogalaxy
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ULAS J1120+0641
The combination of the neutral hydrogen reading, and lack of metals is suggestive of the quasar being embedded in a protogalaxy in the midst of forming , and possibly creating the first Population III stars for the galaxy, or a pre-protogalaxy core still embedded in the primordial hydrogen fog, predating
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M–sigma relation
The flow would stall if the rate of deposition of mechanical energy into the infalling gas was large enough to unbind the protogalaxy in one crossing time
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مجرة بدائية
تكون المجرة البدائية في الفلك (بالإنجليزية: protogalaxy أو primeval galaxy) في هيئة سحابة من الغاز الذي تتكون منه المجرة يجري بعد ذلك نشأة نجوم فيها .
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Himiko
The name Himiko was given to a Lyman-alpha blob (a massive concentration of hydrogen gas believed to be a protogalaxy) that was discovered in 2009.
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Index of physics articles (P)
length
Proper motion
Proper orbital elements
Proper time
Proper velocity
Proportional counter
Propulsion
Propulsive efficiency
Prosper-René Blondlot
Protogalaxy
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